Brief results of expedition investigations of the southeastern part of the Baltic Sea and the eastern part of the Gulf of Finland during the 56 cruise of the R/V Akademik Boris Petrov (2024) are presented. The expedition was dedicated to continuation of longstanding oceanological researches conducted by the IO RAS. An integrated geophysical, geological, hydrological, hydrophysical, hydrochemical and hydrobiological investigations were carried out. New data on the state and dynamic of natural systems and bottom landscapes of the Baltic Sea were obtained.
Dorokhov et al. (2025) studied this question.